Home / 151,045.16-208,426.16-87,371.06

Finding the Fourth Proportional to 151,045.16, 208,426.16 and 87,371.06

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Solution

The fourth proportional to 151,045.16, 208,426.16 and 87,371.06 is: 120,562.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,045.16 : 208,426.16 = 87,371.06 : x
  2. Step 2: Convert to fraction form
    151,045.16/208,426.16 = 87,371.06/x
  3. Step 3: Cross multiply
    151,045.16x = 208,426.16 × 87,371.06
  4. Step 4: Simplify right side
    151,045.16x = 18,210,413,707.23
  5. Step 5: Solve for x
    x = 18,210,413,707.23/151,045.16
  6. Step 6: Final answer
    x = 120,562.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.